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93998-08-4

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93998-08-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93998-08-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,9,9 and 8 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 93998-08:
(7*9)+(6*3)+(5*9)+(4*9)+(3*8)+(2*0)+(1*8)=194
194 % 10 = 4
So 93998-08-4 is a valid CAS Registry Number.

93998-08-4Downstream Products

93998-08-4Relevant articles and documents

Beyond the Tebbe Olefination: Direct Transformation of Esters into Ketones or Alkenes

Dom?alska-Pieczykolan, Anna M.,Furman, Bart?omiej

supporting information, p. 730 - 736 (2020/04/08)

A direct, effective, and operationally simple transformation of esters into ketones or alkenes by the exclusive action of Tebbe's reagent has been developed. The transformation utilizes the dual character of Tebbe's reagent as both a methylenation agent and a rearrangement catalyst in the reaction of a wide range of substituted vinyl ethers. The resulting transformation involves sequential methylenation and rearrangement reactions and it offers a high degree of selectivity toward the synthesis of ketones or alkenes. The scope and limitations of the developed methods have been also examined.

Boron trifluoride-catalyzed reaction of alkyl fluoride with silyl enolate, allylsilane, and hydrosilane

Hirano, Koji,Fujita, Kazuya,Yorimitsu, Hideki,Shinokubo, Hiroshi,Oshima, Koichiro

, p. 2555 - 2557 (2007/10/03)

Alkylation of silyl enolates with tert-alkyl or allylic fluorides proceeds smoothly in the presence of a catalytic amount of boron trifluoride to afford the corresponding carbonyl compounds. Allylation and reduction of alkyl fluorides with allylsilane and hydrosilane, respectively, occur under BF 3 catalysis.

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